Necchi Sewing Machine Instruction and Service Manuals Necchi Sewing Machine instructions Manuals available in Hard Copy, On CD or Download. Necchi Instruction Manuals. Please read all "Terms and Conditions" on the Home Page before ordering.. Click to enlarge. Necchi Nora Instruction Manual / 1 / / . Click to enlarge : Necchi BF MI Vintage Sewing Machines: Necchi BU - NA Wiring Necchi BU - NA Wiring Thank you SO much for making this wiring diagram! #can anyone help with a wiring problem with a Necchi Lydia 544 sewing machine? Reply Delete. Replies. Reply. Unknown April 17, 2019 at 3:46 PM. This is exactly some of the info I need.Author: Tom Carbone Wiring Necchi Supernova – Vintage Sewing Machines Necchi Supernova machines have an electrical block regulating the current to the motor and the lamp. Necchi Supernova Julia has a somewhat different block, see Dan's post. Here is the underbelly of a 1955 Necchi Supernova flat bed with the electrical block at its right end. This is the European version of the "First Edition", i.e.